Uranyl zinc acetate

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Uranyl zinc acetate
Zinc uranyl acetate 1g.JPG
IUPAC name
zinc bis(acetato-O)dioxouranate
Other names
zinc uranyl acetate
ECHA InfoCard 100.030.342
Molar mass 571.59 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Uranyl zinc acetate (ZnUO2(CH3COO)4) is a compound of uranium.

Uranyl zinc acetate is used as a laboratory reagent in the determination of sodium concentrations of solutions using a method of quantitatively precipitating sodium with uranyl zinc acetate and gravimetrically determining the sodium as uranyl zinc sodium acetate, (UO2)3ZnNa(CH3CO2)9·6H2O. The presence of caesium and rubidium does not interfere with this reaction, but the presence of potassium and lithium must be removed prior to analysis.[1][2]

This method was important to determine Na in urine for diagnostic purposes. Zinc uranyl acetate is sometimes called "sodium reagent" since pale yellow NaZn(UO2)3(C2H3O2)9 is one of the very few insoluble sodium compounds.

Laboratory use[edit]

Uranyl zinc acetate has been used as a catalyst for converting dimethyl carbonate into toluene-2,4-diisocyanate (TDI).[3]


  1. ^ Barber, H. H.; Kolthoff, I. M. (1928). "A specific Reagent for the Rapid Gravimetric Determination of Sodium". J. Am. Chem. Soc. 50 (6): 1625. doi:10.1021/ja01393a014. 
  2. ^ Barber, H. H.; Kolthoff, I. M. (1929). "Gravimetric Determination of Sodium by the Uranyl Zinc Acetate Method. II. Application in the Presence of Rubidium, Cesium, Potassium, Lithium, Phosphate or Arsenate". J. Am. Chem. Soc. 51 (11): 3233. doi:10.1021/ja01386a008. 
  3. ^ Wang, Y.; Zhao, X.; Li, F.; Wang, S.; Zhang, J. (2001). "Catalytic synthesis of toluene-2,4-diisocyanate from dimethyl carbonate". Journal of Chemical Technology & Biotechnology. 76 (8): 857. doi:10.1002/jctb.455.